Method, server, firewall, control device, and system for programming a control device of a vehicle

A server, including:

• a hardware processor, a memory and instructions stored on the memory, which when executed by the processor configures the server to execute a method for programming a control unit, the method comprising:
• receiving a first software module;
• receiving encrypted vehicle software;
• conveying the first software module via a first interface to the control unit;
• conveying a command for blocking the first interface to the control unit;
• conveying the encrypted vehicle software to a firewall;
• and
• conveying a command for writing a key to the firewall.

A control unit, the control unit comprising:

• a first interface configured to receive a first software module;
• a first storage element configured to store the first software module;
• a second storage element configured to store decrypted vehicle software;
• a third storage element configured to store a key;
• and
• a hardware processor, comprising instructions which, when executed on the processor causes the control unit to:
• write the first software module via the first interface into the control unit;
• block the first interface of the control unit;
• write the key via a second interface into the third storage element of the control unit;
• write encrypted vehicle software via the second interface into the control unit;
• decrypt the encrypted vehicle software by the first software module using the written key;
• store the decrypted vehicle software in the second storage element of the control unit;
• and
• install a read protection for the second storage element of the decrypted vehicle software.